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Definition of Cetacea
1. Noun. An order of Eutheria.
Generic synonyms: Animal Order
Group relationships: Eutheria, Subclass Eutheria
Member holonyms: Blower, Cetacean, Cetacean Mammal, Mysticeti, Suborder Mysticeti, Odontoceti, Suborder Odontoceti, Family Monodontidae, Monodontidae
Derivative terms: Cetacean, Cetaceous
Definition of Cetacea
1. n. pl. An order of marine mammals, including the whales. Like ordinary mammals they breathe by means of lungs, and bring forth living young which they suckle for some time. The anterior limbs are changed to paddles; the tail flukes are horizontal.
Medical Definition of Cetacea
1. An order of wholly aquatic mammals occurring in all the oceans and adjoining seas of the world, as well as in certain river systems. Some cetaceans are the only animals other than elephants that have a brain larger than man's. most have eyes well adapted to underwater vision and can also see well above water. They produce numerous underwater sounds used in echolocation. They feed generally on fish, cephalopods, and crustaceans. Most are gregarious and most have a relatively long period of parental care and maturation. (12 Dec 1998)
Lexicographical Neighbors of Cetacea
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